| 摘要 |
<p>Drive units for effecting torque-transmission via a non-rotating sealing tube are provided for various fields of use where a positive sealing is required for a shaft that passes through an aperture (e.g. a propeller shaft transmission). The shaft (4), rotatable about an axis (5), is freely mounted in a bearing bush in an aperture (3) in a wall (2) of a housing (1) that can take many forms. The other end of the shaft (4) is located in a blind-bearing. An intermediate eccentric portion (6) is provided on the shaft, which passes through an eccentric aperture (8) in a main eccentric. A non-rotating sealing tube (7) passes through this aperture, surrounding the portion (6), and is sealed by diaphragms, bellows or flexible hoses extending from each end to the related end of the shaft, where a static seal is formed.</p> |
